I received this as a sample with a recent Zuneta order, and I ended up liking it more than the mascara I bought in that order (Rouge Bunny Rouge Modelling Mascara, which leaves my lashes looking a bit spindly.)
Hourglass mascara, for me, is mascara perfection. It lengthens, volumises and really holds a curl well, and it doesn't smudge or smear. I like the shape of the brush (no smears on my lid with this one) and it doesn't get that annoying build up of mascara on the brush that some other mascaras do.
It's £19, which isn't obscene for a high end mascara these days, and it's cheaper than the Suqqu I like (and the Rouge Bunny Rouge that I don't.) I'll definitely be purchasing one of these when I run out of the sample.
Hourglass is only available at Zuneta.com in the UK. It's at Sephora in the US.